Title
A generalization of weight polynomials to matroids
Abstract
Generalizing polynomials previously studied in the context of linear codes, we define weight polynomials and an enumerator for a matroid M . Our main result is that these polynomials are determined by Betti numbers associated with N 0 -graded minimal free resolutions of the Stanley-Reisner ideals of M and so-called elongations of M . Generalizing Greene's theorem from coding theory, we show that the enumerator of a matroid is equivalent to its Tutte polynomial.
Year
DOI
Venue
2016
10.1016/j.disc.2015.10.005
Discrete Mathematics
Keywords
Field
DocType
tutte polynomial,linear code,matroid
Matroid,Discrete mathematics,Enumerator polynomial,Betti number,Combinatorics,Tutte polynomial,Matroid partitioning,Graphic matroid,Weighted matroid,Mathematics,Difference polynomials
Journal
Volume
Issue
ISSN
339
2
0012-365X
Citations 
PageRank 
References 
2
0.44
7
Authors
3
Name
Order
Citations
PageRank
Trygve Johnsen1337.94
jan roksvold220.44
hugues verdure3154.54